Apparatus for correcting variable condensers



Feb. 7, 1933.

APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, 1931 19 Sheets-Sheet l Resp onsc FIG. 1

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gvyventoz Noel De1'sc'h dttomqd/ N. DEISCH 1,896,885 I Feb. 7, 1933. N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENSERS 19 Shets-Sheet 2 Filed Sept. 5, 1931 FIG. 6

Feb. 7, 1933. N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 1931 19 Sheets-Sheet 3 N0 61 Defsch Feb. 7, 1933.

N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, 1951 19 Sheets-Sheet 4 FIG. 8

N. DEISCH 1,896,885

Feb. 7, 1933.

APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, 1951 19 Sheets-Sheet 5 I65 x H9 8 FIG. 9

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FIG-11 l9 Sheets-Sheet 6 6 iNoezp N. DEISCH Filed Sept. 5, 1931 APPARATUS FOR CORRECTING VARIABLE CONDENSERS Feb. 7, 1933.

19 Sheets-Sheet 7 N. DEISCH FIG. 14b

Noel DQ119013 W Filed Sept. 5, 1931 APPARATUS FOR CORRECTING VARIABLE CONDENSERS iIII/I/ Feb. 7, 1933.

FIG. 15b

FIG. 15a

Feb. 7, 1933.

N. DEISCH 1,896,885

APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, 1931 19 Sheets-Sheet 8 Feb. 7, 1933. N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, 1951 19 Sheets-Sheet 9 gnaw tom Noel Dejsch Feb. 7, 1933. N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENSERS t c Z w .N

Feb. 7, 1933. N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, .1931 19 Sheets-Sheet l1 Feb. 7, 1933. h 1 'c 1,896,885

APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, 1931 i9 Sheets-Sheet 12 O O 3 cu 3 gwuanto'o Feb. 7, 1933v N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, 1931 19 Sheets-Sheet l4 FIG. '26

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Feb. 7, 1933. N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENSERS Fild Sept. 5, 1931 19 Sheets-Sheet. l 5

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APPARATUS FOR CORRECTING VARIABLE CONDENSERS Filed Sept. 5, 1931 19 Sheets-Sheet 16 gww'zntoc Noel Del'sch FIG. 38

FIG. 39 1 FIG. 40

FIG. 37

Feb. 7, 1933. N. DEISCH APPARATUS FOR CORRECTING VARIABLE GONDENSERS .Filed Sept. 5, 1951 19 Sheets-Sheet l7 gvioefitoz Noel Defsch FIG. 47

Feb. 7, 1933. N. DEISCH APPARATUS FOR CORRECTING VARIABLE CONDENS ERS Filed Sept. 5, 1951 19 Sheets-Sheet l 8 PNN uNu

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Pat ent ed Feb. 7, 1933 UNITED STATES NOEL DEISCH, OF WASHINGTON, DISTRICT OF COLUMBIA APPARATUS FOR CORRECTING VARIABLE CONDENSERS Application filed September 5, 1931. Serial No. 561,490.

The invention relates to a machine for correcting capacity aberratlons 1n condensers by removing zonal sections of rotor elements of variable condensers to bring the capacities of said condensers to a predetermined and uniform value for their various capacity settings, the correctional operations being effected by acutting tool controlled and operated by electromechanical means, includ- 1 ing means for connecting the condenser in an 7 oscillating circuit inductively coupled with a receptor circuit, which includesa standard condenser and a relay circuit responsive to current changes in the receptor circuit, effected by variations in the frequency of the oscillating circuit, from that of the receptor circuit, the relay circuit includingv means for effectively engaging the tool with the work when said relay circuit is energized; the machine also including an auxiliary condenser in parallel with the condenser to be corrected and adjustable to compensate capacity disturbing effects of the cutter and also capacity aberrations of the condenser being operated its final environment.

A typical machine involving the aforesaid fundamental structural and operative features, together with various other details, is

circuit and shows the value of the response to a signal at three different frequencies.

Fig. 3 isa diagram showing the nature of the correction required at any given capacity setting ofa condenser to achieve a correction of the capacity characteristic at that setting. Fig. 4 is a diagram illustrating the relations involved in the method of reforming the contour of a condenserblade to correct 5 capacity aberrations of the condenser.

upon, due to change from its correctional to' illustrated in the accompanying drawings,

Fig. 11, and show another of the condenser Fig. 5 is a diagram showing a cutting wheel in the process of reshaping a condenser blade, and illustrates the influence ofthe depth of cut of the wheel in spuriously m'odie fying the capacity of the condenser. I 555 Fig. 6 is a wiring diagram showing thev pref-erred arrangement of an oscillation generating circuit andtwo receptor circuits controlling relay apparatus as used in carrying out the invention. I

Fig. 7 is a diagram ofapparatus similar 7 to Fig. 6but including'receptorcircuits ofa different type;

Fig. 8 is a diagram showing a modified circuit arrangement comprising an oscillation generator and a'single receptor circuit controlling relay apparatus, such as may be used in carrying out the invention. i

Fig. 9 is a reduced front elevational view of the machine for trimming a condenser blade to correctthe capacity aberrations'of a condenser as installed in its cabinet.

Fig. 9A isa top plan view of Fig. 9.

Fig. 10 is a fragmentary-front elevational view showing particularly the mechanism for securing in place the condenser whose blade I is to be reshaped, the parts being in the position which they assume just prior to the placing of the condenser inthemachine.

Fig. 11 is a view similar to Fig. 10 but 9' showing the condenser in place and the rotor positioning lever depressed. f

Fig. 12is a fragmentary side elevational view showing the condenser in place, and illustratesespecially'the mechanism for supporting, aligning, and clamping the con denser and for. moving the rotor to the proper initial position. I V

Fig. 13 is a fragmentary section taken on the line '1313'of Fig. 11', and shows especially the means by which the condenser. is clamped into place. y

Figs. 14a, 14b, and 140 are fragmentary; sectional views taken on theline'lt-ltof Fig. 11, and show one of the condenserrotor positioning claws in threeiconsecutive positrons. r 1

Figs. 15a, 15b, and 150 are fragmentary sectionalviews taken on the line 15 -15 v of 

